Apparatus eor regulating the supply of water to steam-boilers



UNITED STATES PATENT OFFICE.

I. L. COLMAN, OF VINCENNES, INDIANA.

APPARATUS FOR REGULATING THE SUPPLY OF WATER TO STEAM-BOILERS.

Specification of Letters Patent No. 23,229, dated March 15, 1859.

To all whom t may concern:

Be it known that I, I. L. COLMAN, of Vincennes, county of Knox, State ofIndiana, have invented a new and useful Machine for Regulating the later1n a Steam- Ioiler, termed I. L. Colmans Steam-Boiler Tater-Regulator;and I do hereby declare that the following is a full and exact.description of the construction and operation of the same, referencebeing had to the annexed drawings, making a part otl this specification.

To enable others skilled in machinery to make and use my invention Iwill proceed to describe the construction and operation, in which-Figure l is a perspective view, Fig. 2 a down View into the boiler, Figxan end view of boiler, Fig. 4 a water chest, Fig. l show ing head ofboiler crank A screwed on float arbor passing into the boiler shown atFig. 3, end of boiler open, the crank A on the arbor connected with thefloat arm .5 to the ioat- 7 falling between the lues. If head of boileris obstructed put it on the side of the boiler as shown at Fig. 2, crankA on the float arbor t passing through side of boiler with a bearingscrewed into the Hue, the float arm 5 fastened on arbor and float 7between the flues. Fig. l. From crank A the pitman B extends up tocrankD on rocker shaft E. On the rocker shaft at F the lever C isfastened, extending down to the bar G which extends to lever H. Thislever vibrates at the oblong' hole I, the lower end of lever H at Kforked with a pin passing through fork and piston of slide valve inwater chest L, supply pipe N leading from cistern M through water chestL, through charge pipe and the detector pointer rises and when it fallsthe water valve opens the detector pointer falls. Thus the valve actingin opposition brings the water in the boiler to a standing point. Shouldthat place be too high screw the valve forward by the valve piston, iftoo low reverse the screw. lVhen once rightitcannot materially changewith the same head of supply water and the force pump in order, which ifnot right the detector will soon tell.

Any of the known valves will answer with a slight change in themachinery, as shown at Fig. l, water chest 2, supply pipe 3, dischargepipe Ll, valve 5, piston 6, connected to the stem of the valve 5, apitman working on piston at 7.

I do not claim the float in boiler crank levers water chest valve ordetector but I do claim- The combined arrangement of these to effect theobject desired to regulate the water in a steam boiler to any desiredpoint from which is cannot materially change.

I. L. COLMAN.

IVitnesses M. L. EDsoN, H. HARMAN.

